package file;

import java.io.File;
import java.io.IOException;
import java.util.Scanner;

public class Demo4 {
    public static void main(String[] args) throws IOException {
        File f=new File("./aaa.txt");
        f.createNewFile();//创建文件
        f.deleteOnExit();//程序结束再删除文件
        Scanner scanner=new Scanner(System.in);
        scanner.nextInt();
    }
}
